El Castillo rises head and shoulders above all the other temples at Xunantunich. It's quite impressive at 130 feet, and is the second tallest building in the country. You can climb to the top for great views of the Cayo District jungle, and into neighboring Guatemala.
Our guide told us that when Guatemala was still pressing its claim to Belize land, military guards were stationed at Xunantunich and would scan the border with their binoculars. Mostly they saw Guatemalan soldiers looking back at them through their binoculars. Must have been a bit unnerving!
When at Xunantunich you really must climb El Castillo, the big pyramid. From the top you have a fantastic view of the ruins, Belizean countryside, and two towns right across the border in Guatemala (only 1 km away). The clime may be tough on your balance (if you are older), but is really not difficult at all, harder getting back down actually.
Located between Plazas A-II and A-III, this pyramid consisting of four levels were use for administrative purpouses.
After visiting the top of the pyramid the stairs lead you to the west of the pyramid, again some stucco replicas covering the original freezes can be seen.
The top of the pyramid offers great 360 degrees panoramic views of the complex, the jungle, the mountains and the Guatemalan border.